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12885507876 = 2236803157841
BaseRepresentation
bin11000000000000100…
…10011111100100100
31020021000100121210110
430000002103330210
5202342142223001
65530341053020
7634213003233
oct140002237444
936230317713
1012885507876
11551259586a
1225b73b7170
1312a4755a97
148a3484b1a
155063883d6
hex300093f24

12885507876 has 24 divisors (see below), whose sum is σ = 30070795104. Its totient is φ = 4294510720.

The previous prime is 12885507863. The next prime is 12885507893. The reversal of 12885507876 is 67870558821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2716 + ... + 160556.

It is an arithmetic number, because the mean of its divisors is an integer number (1252949796).

Almost surely, 212885507876 is an apocalyptic number.

It is an amenable number.

12885507876 is an abundant number, since it is smaller than the sum of its proper divisors (17185287228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12885507876 is a wasteful number, since it uses less digits than its factorization.

12885507876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164651 (or 164649 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 57.

The spelling of 12885507876 in words is "twelve billion, eight hundred eighty-five million, five hundred seven thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 12 6803 13606 20409 27212 40818 81636 157841 315682 473523 631364 947046 1894092 1073792323 2147584646 3221376969 4295169292 6442753938 12885507876